147、The p__________(人口)in and around san Francisco is now ten times larger than it was in 1906.

146、The outside of the earth is made of a number of different p__________(板块).

145、Science is the t__________(工具)that we use to make our dreams become real and to build a new world with our ideas.

144、New inventions and d__________(发现)have made it possible for us to think about the world in new ways.

143、Another sport we may not know much about is the hammer t__________(掷铅球)。

142、France will be r__________( 代表)by three fencers(击剑手)。

141、B__________ your nose(擤鼻涕)at the table or spitting isn’t very polite.

140、When meeting people, westerners usually s hands__________(握手).

139、He’s got more money than t__________(修养；鉴赏力)。

138、In Russia, you often have to m__________(较量)your drink with that of your host if you want to be friendly.